The Big Nickel is a nine-metre (30 ft) replica of a 1951 Canadian nickel, located at the grounds of Dynamic Earth in Sudbury, Ontario, Canada. The twelve-sided nickel is located on a small hill overlooking the intersection of Municipal Road 55 and Big Nickel Drive at the westernmost end of the Gatchell neighbourhood.
The Big Nickel celebrated its 45th anniversary on July 22, 2009 with a "birthday party" on the grounds of Dynamic Earth, including a display of coins from Science North's Inco Coin Collection.(Wikipedia)
"The Big Nickel"